Basler C11-1220-12M ເລນ (12.39 mm ± 5 %; F2.0–F16)

Focal Length f: 12.39 mm ± 5 %

Aperture Range: F2.0–F16

Aperture with Highest Resolution: F2.3

Image Circle: 17.6 mm (1.1”)

Focus Range: 0.1 m to infinity

Optimum Working Distance: 0.4 m

Relative Illumination at Full Aperture: 58 %

Resolution: Designed for 140 LP/mm

MTF Measured in the Center at 90 LP/mm / 140 LP/mm (conditions: F2.4, polychromatic, 0.45 m working distance): 0.56 / 0.4

MTF Measured in the Corner at 90 LP/mm / 140 LP/mm (conditions: F2.4, polychromatic, 0.45 m working distance): 0.42 / 0.3

Optical Distortion: Typical -3.10 %

Angle of View, 1/1.8 Format: Horizontal: 56.1° Vertical: 43.6°

Angle of View, 2/3 Format: Horizontal: 61.2° Vertical: 46.9°

Wavelength Range: Visible (400–700 nm)

Back Focal Length, sF: 10.15 mm

Flange Back: 17.526 mm

Mount: C-mount

Weight: Approx. 211.2 g

Focus/Iris Operation: Manual